OutputStream out = null;

          try

          {

              String contenttype = "image/jpeg";

              ActionContext context = ActionContext.getContext();

               // HttpServletRequest request = (HttpServletRequest) context.get(ServletActionContext.HTTP_REQUEST);

                HttpServletResponse response = (HttpServletResponse) context.get(ServletActionContext.HTTP_RESPONSE);  

                response.setContentType(contenttype);

                out = response.getOutputStream();

           Statement stmt=con.createStatement();

           String sql="select top 1 zp from table_1 ";

           ResultSet rs=stmt.executeQuery(sql);

           //byte []by =rs.getBytes(0);

           while(rs.next()){

               out.write(rs.getBytes("ZP"));

           }

          }

          catch(SQLException ee){

          }

          finally {

              out.flush();

                out.close();

          }        

<action name="bb" class="test.tt" method="getimage2">

        </action>

 <img name="inputName"  id="inputName" src="bb.action"/>